Wood distribution along streams draining old-growth floodplain forests in Congaree National Park, South Carolina, USA

Wohl, Ellen; Polvi, Lina E.; Cadol, Daniel

doi:10.1016/j.geomorph.2010.10.035

Cited by 48 publications

(30 citation statements)

References 59 publications

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“…Species composition and stand age influence susceptibility to disturbances such as wildfire, blowdowns, and insects (Turner, ). Species composition and stand age also influence piece size and shape of LW, and therefore mobility and residence time of LW on floodplains and in channels (Montgomery et al ., ; Wohl et al ., ). Finally, species composition and stand age influence mortality rate and rates of LW decay and abrasion (Keim et al ., ; Hyatt and Naiman, ; Latterell and Naiman, ; Wohl and Goode, ).…”

Section: A Review Of Oc Stocks In Riparian Ecosystemsmentioning

confidence: 99%

“…Channel geometry and in‐stream wood play an important role in the retention and ecosystem processing of OC because wood obstructing channelized flow can facilitate complex flow paths and hydrologic connectivity to the floodplain and floodplain retention of OM (Sear et al ., ; Wohl et al ., ; Collins et al ., ; Polvi and Wohl, ; Wohl, ; Beckman and Wohl, ), delay the downstream transport of POM (Bilby, ; Montgomery et al ., ; Quinn et al ., ; Battin et al ., ), and create biological hotspots that provide opportunities for biota to metabolize OC (Gomi et al ., ; Allan and Castillo, ; Hilton et al ., ; Tank et al ., ).…”

Section: A Review Of Oc Stocks In Riparian Ecosystemsmentioning

confidence: 99%

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Banking carbon: a review of organic carbon storage and physical factors influencing retention in floodplains and riparian ecosystems

Sutfin

Wohl

Dwire

2015

Earth Surf Processes Landf

239

270

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Rivers are dynamic components of the terrestrial carbon cycle and provide important functions in ecosystem processes. Although rivers act as conveyers of carbon to the oceans, rivers also retain carbon within riparian ecosystems along floodplains, with potential for long‐term (> 102 years) storage. Research in ecosystem processing emphasizes the importance of organic carbon (OC) in river systems, and estimates of OC fluxes in terrestrial freshwater systems indicate that a significant portion of terrestrial carbon is stored within river networks. Studies have examined soil OC on floodplains, but research that examines the potential mechanistic controls on OC storage in riparian ecosystems and floodplains is more limited. We emphasize three primary OC reservoirs within fluvial systems: (1) standing riparian biomass; (2) dead biomass as large wood (LW) in the stream and on the floodplain; (3) OC on and beneath the floodplain surface, including litter, humus, and soil organic carbon (SOC). This review focuses on studies that have framed research questions and results in the context of OC retention, accumulation and storage within the three primary pools along riparian ecosystems. In this paper, we (i) discuss the various reservoirs for OC storage in riparian ecosystems, (ii) discuss physical conditions that facilitate carbon retention and storage in riparian ecosystems, (iii) provide a synthesis of published OC storage in riparian ecosystems, (iv) present a conceptual model of the conditions that favor OC storage in riparian ecosystems, (v) briefly discuss human impacts on OC storage in riparian ecosystems, and (vi) highlight current knowledge gaps. Copyright © 2015 John Wiley & Sons, Ltd.

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Section: A Review Of Oc Stocks In Riparian Ecosystemsmentioning

confidence: 99%

Section: A Review Of Oc Stocks In Riparian Ecosystemsmentioning

confidence: 99%

Banking carbon: a review of organic carbon storage and physical factors influencing retention in floodplains and riparian ecosystems

Sutfin

Wohl

Dwire

2015

Earth Surf Processes Landf

239

270

View full text Add to dashboard Cite

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“…Floodplain flows, especially in unconfined valleys, typically have less erosive power than in‐channel flows and thus less capacity to transport wood. In addition, forested floodplains may have a high capacity for trapping and immobilizing large wood (Wohl et al ., ).…”

Section: Decision Process For Managing Large Woodmentioning

confidence: 99%

Management of Large Wood in Streams: An Overview and Proposed Framework for Hazard Evaluation

Wohl

Bledsoe

Fausch

et al. 2016

J American Water Resour Assoc

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Instream and floodplain wood can provide many benefits to river ecosystems, but can also create hazards for inhabitants, infrastructure, property, and recreational users in the river corridor. We propose a decision process for managing large wood, and particularly for assessing the relative benefits and hazards associated with individual wood pieces and with accumulations of wood. This process can be applied at varying levels of effort, from a relatively cursory visual assessment to more detailed numerical modeling. Decisions to retain, remove, or modify wood in a channel or on a floodplain are highly dependent on the specific context: the same piece of wood that might require removal in a highly urbanized setting may provide sufficient benefits to justify retention in a natural area or lower-risk urban setting. The proposed decision process outlined here can be used by individuals with diverse technical backgrounds and in a range of urban to natural river reaches so that opportunities for wood retention or enhancement are increased.(KEY TERMS: instream wood; large woody debris; hazard; river restoration; recreation; floodplain management; habitat.)

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“…Montgomery, 2002, O"Connor et al, 2003) One of the key mechanisms that allows wood to influence channel form and dynamics in the presence of riparian vegetation is increased wood retention (in comparison with the unvegetated situation, Figure 4). Increased wood retention / storage results from a number of processes, including the drifting of wood into the floodplain, where it is retained, particularly when riparian vegetation is open and sparse (Wohl et al, 2011), and the incorporation of wood pieces into increasingly large jams as riparian vegetation becomes denser and more mature and also as wood supply increases (Fig. 5) (Wohl and Beckman, 2014).…”

Section: Interactions Between Riparian Vegetation Wood and River Chamentioning

confidence: 99%

Physical modelling of the combined effect of vegetation and wood on river morphology

et al. 2015

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The research reported in this paper employs flume experiments to investigate the potential effects of living vegetation and large wood on river morphology, specifically aiming to explore how different wood input and vegetation scenarios impact channel patterns and dynamics.We used a mobile bed laboratory flume, divided into three parallel channels (1.7 m wide, 10 m long) filled with uniform sand to reproduce braided networks subject to a series of cycles of flooding, wood input, and vegetation growth. Temporal evolution of river configuration (in terms of the braiding index), vegetation establishment and erosion, and wood deposition amount and pattern was recorded in a series of vertical images. The experiments reproduced many forms and processes that have been observed in the field, from scattered logs in unvegetated, dynamic braided channels, to large wood jams associated with river bars and bends in vegetated, stable, single thread rivers. Results showed that the inclusion of vegetation in the experiments changes wood dynamics, in terms of both the quantity that is stored and the depositional patterns that develop. Vegetated banks increased channel stability, reducing lateral erosion and the number of active channels. This promoted the formation of stable wood jams, where logs accumulated continuously at the same locations during subsequent floods, reinforcing their effect on river morphology. The feasibility of studying these processes in a controlled environment opens new possibilities for disentangling the complex linkages in the biogeomorphological evolution of the fluvial system and thus for promoting improved scientific understanding.

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Wood distribution along streams draining old-growth floodplain forests in Congaree National Park, South Carolina, USA

Cited by 48 publications

References 59 publications

Banking carbon: a review of organic carbon storage and physical factors influencing retention in floodplains and riparian ecosystems

Banking carbon: a review of organic carbon storage and physical factors influencing retention in floodplains and riparian ecosystems

Management of Large Wood in Streams: An Overview and Proposed Framework for Hazard Evaluation

Physical modelling of the combined effect of vegetation and wood on river morphology

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